1Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States, 2Radiology, University of Wisconsin-Madison, Madison, WI, United States, 3Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, 4Medicine, University of Wisconsin-Madison, Madison, WI, United States, 5Emergency Medicine, University of Wisconsin-Madison, Madison, WI, United States

Recent studies have suggested the presence of a short-T2* signal component
in the liver. The origin and MR properties of this signal have not been determined
but have been shown to confound the liver fat quantification when using short echo
times. In this work, we developed a UTE chemical shift-encoded MRI technique and
a multi-component reconstruction to characterize short-T2* liver signals. A short-T2*
signal fraction of 11.6±2.4% with an R2* of 2222±281s-1 was measured
in seven healthy volunteers. This study demonstrated the presence of the short-T2*
signal component in healthy livers and provided an initial estimate to guide future
studies.

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